Password: Register: FAQ: Timeslips/Garage: NoSoup4U(Chat) Calendar: Search: ... LML: Twin Fueler and Stealth 64 Install Crank No Start. I have an exhaust and tune but do you think are some other good mods for some more go fast? Solid Gains With Stock Setups. For some baseline horsepower and torque numbers, the Denali was run on a SuperFlow chassis dyno at Randall’s Performance. Wondering what are the recommended mods besides DPF and EGR delete. Shop Turbo Upgrades for the GM Duramax 6.6L 2011-2016 LML! share. This thread is archived. I just traded in my 2014 gmc 1500 and bought my first diesel 2016 GMC 2500 Denali and was wondering the same things No hand held tuner is going to do what you want. 12 comments. Duramax Diesels Forum > Duramax/Diesel Technical > Duramax Hard Parts: LML User Name: Remember Me? Torque mngt isnt really what I say is the cause here. BlackMamba2014. Between the DPF system and multiple sound reducing devices, the stock exhausts are extremely restrictive from the factory making an exhaust upgrade a highly recommended mod. RPM Outlet has free shipping and low pricing on performance parts for your 2011-2017 GM Duramax LML. 1. Not to worry though as solid gains are still available when using a tuner on your Duramax which is running the stock intake and exhaust systems. Thanks for all this info, I am glad I found this thread. This is going to take an in person visit so … 03-13-2020 07:47 PM by KyleC4. Best bang for your buck mods? At 349 hp and 656 lb-ft. of torque, this is what a typical dyno graph looks like for a bone-stock ’11 to ’15 LML Duramax. The 2014+ trucks are a torque based computer and adjustments to torque mngt have to be taken with great care. Performance parts for your 2011-2017 GM Duramax LML. save hide report. Discuss anything related to Custom Duramax Brakes, Suspension Mods, Chassis Mods and Tuning, Towing options, Driveline, 4x4, Differentials, Sway Bars, Lifting Springs, Body Lifts, Strut Braces, etc. Not looking to turn it into a dragster, just want great reliability and best mileage possible. Hey guys I just bought a new 2016 Midnight Edition 2500HD 6.6 Duramax. Most important mods for a LML? Looking to get near 650hp on my LML Duramax. XDP carries all the parts and accessories you need for the best diesel performance. New posts: Hot thread with new posts: No new posts: Hot thread with no new posts: Thread is closed 92% Upvoted. 12: 472: CP4 pump warranty wuestion.